Function is_train_number

pub fn is_train_number(train_number: &str) -> bool

火车车次

Examples

let train_number = String::from("G14");
let train_number_2 = String::from("G11234");

assert_eq!(regex_collection::common::is_train_number(&train_number), true);
assert_eq!(regex_collection::common::is_train_number(&train_number_2), false);